Surgical suture. Surgical suture is a medical device used to hold body tissues together after an injury or surgery. Application generally involves using a needle with an attached length of thread. A number of different shapes, sizes, and thread materials have been developed over its millennia of history.
Parentheses or round brackets, denoted by '( )', is generally used to define the different precedence of numbers in a mathematical expression. Box brackets or square brackets: Apart from mathematical expression, '[ ]' square brackets are also used to represent the numbers in interval.
Round brackets can also be used to show that something could be singular or plural, e.g., Remove the pin(s) from the leg. When round brackets are used to insert information at the end of a sentence, the end punctuation of the sentence is placed outside the bracket. All the crew survived (even the dog).